OpenCPI Endpoint for DMA IP Specification

The following is a specification for the OpenCPI Endpoint for DMA (OPED)

Reference Documentation

Standard Interfaces for NetFPGA-10G Platform IP

Interfaces

Control and Status

Data Path Interfaces

Egress Data Path Interface

The egress interface is for carrying packets heading to the PCIe bus.

In the language of data path interfaces, it has the following specification:

Channel Name Configuration

DAT C_DAT_DATA_WIDTH = 256

LEN consumer, C_LEN_DATA_WIDTH = 16

SPT not consumer, C_SPT_DATA_WIDTH = 8

DPT consumer, C_DPT_DATA_WIDTH = 8

ERR not consumer

Ingress Data Path Interface

The ingress interface is for carrying packets coming from the PCIe bus.

In the language of data path interfaces, it has the following specification:

Channel Name Configuration

DAT C_DAT_DATA_WIDTH = 256

LEN active producer, C_LEN_DATA_WIDTH = 16

SPT active producer, C_SPT_DATA_WIDTH = 8

DPT grounded

ERR grounded